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LEARN MORE Neurology Abstract Injuryboard on Alzheimer's & Dementia National Institute on Aging National Institute on Neurological Disorders and Stroke Injuryboard on ibuprofen & alzheimer's Alzheimer's Association IMAGE SOURCE: Wikimedia Commons/ Alzheimer's in stages/ author: NASA According to a new study, those who have symptoms of Alzheimer's and who exercise regularly have four times less brain shrinkage than those who do not hit the pavement. The study is released in the journal Neurology . It makes sense. For those who have normal brain activity, it's been shown that exercise improves thinking and memory. The theory is that exercise boosts blood flow and elevates growth hormones. Dr. Jeffrey Burns of the University Of Kansas School Of Medicine wanted to find out if exercise could preserve the brain functioning for a longer period of time when people are faced with early signs of Alzheimer's. It's one of the first time this theory has been tested. With Alzheimer's the functioning of the brain, including short term memory, declines as the disease kills nerve cells, which in turn causes the brain to lose volume. Researchers from the Departments of Neurology and Molecular & Integrative Physiology and the Hoglund Brain Imaging Center at the University of Kansas School of Medicine, looked at 121 people over the age of 60. About half of them had early stages of Alzheimer's. The Alzheimer's patients were studied for their level of ...